c# - WWF：SqlWorkflowInstanceStoreBehavior 与 SqlWorkflowInstanceStore

Question

我有一个包装 WCF 服务的 Windows 服务，该服务包含一个运行活动的 WorkflowApplication。我还配置了 SQL Server 2008 Express（我知道，它正在接近 EOL，但文档明确指出仅支持 SQL Server 2005 或 SQL Server 2008）来托管数据库并且连接正常。更清楚一点：Activity 的整个过程完成并接收返回（我通过包装在 PowerShell 中的 WCF 客户端调用它）。

我遇到的问题是我在 ServiceHost 上配置了 SqlWorkflowInstanceStoreBehavior ，在 WorkflowApplication 上配置了 SqlWorkflowInstanceStore。这些都不会引发 SQL 异常，但我认为ServiceHost 正在优先考虑，因为我所看到的只是 LockOwnersTable 上的单个条目。

来自 Windows 服务的代码：

        this.obj = new ServiceHost(typeof(WorkflowService));
        SqlWorkflowInstanceStoreBehavior instanceStoreBehavior = new SqlWorkflowInstanceStoreBehavior("Server=.\\SQL2008EXPRESS;Initial Catalog=WorkflowInstanceStore;Integrated Security=SSPI")
        {
            HostLockRenewalPeriod = TimeSpan.FromSeconds(5),
            InstanceCompletionAction = InstanceCompletionAction.DeleteNothing,
            InstanceLockedExceptionAction = InstanceLockedExceptionAction.AggressiveRetry,
            InstanceEncodingOption = InstanceEncodingOption.GZip,
            RunnableInstancesDetectionPeriod = TimeSpan.FromSeconds(2)
        };
        this.obj.Description.Behaviors.Add(instanceStoreBehavior);
        this.obj.Open();

来自 WCF 服务/工作流应用程序的代码：

        SqlWorkflowInstanceStore newSqlWorkflowInstanceStore = new SqlWorkflowInstanceStore("Server=.\\SQL2008EXPRESS;Initial Catalog=WorkflowInstanceStore;Integrated Security=SSPI")
                                                        {
                                                            EnqueueRunCommands = true,
                                                            HostLockRenewalPeriod = TimeSpan.FromSeconds(5),
                                                            InstanceCompletionAction = InstanceCompletionAction.DeleteNothing,
                                                            InstanceLockedExceptionAction = InstanceLockedExceptionAction.BasicRetry,
                                                            RunnableInstancesDetectionPeriod = TimeSpan.FromSeconds(5)
                                                        };
        InstanceHandle workflowInstanceStoreHandle = newSqlWorkflowInstanceStore.CreateInstanceHandle();
        CreateWorkflowOwnerCommand createWorkflowOwnerCommand = new CreateWorkflowOwnerCommand();
        InstanceView newInstanceView = newSqlWorkflowInstanceStore.Execute(workflowInstanceStoreHandle, createWorkflowOwnerCommand, TimeSpan.FromSeconds(30));
        newSqlWorkflowInstanceStore.DefaultInstanceOwner = newInstanceView.InstanceOwner;

        // Now stage the WorkflowApplication, using the SQL instance.
        AutoResetEvent syncEvent = new AutoResetEvent(false);
        WorkflowApplication newWorkflowApplication = new WorkflowApplication(unwrappedActivity)
                                                         {
                                                             InstanceStore = newSqlWorkflowInstanceStore
                                                         };

问题：

1. ServiceHost SqlWorkflowInstanceStoreBehavior 是否覆盖WorkflowApplication 上的 SqlWorkflowInstanceStore？如果是这样，显而易见的答案是删除 ServiceHost 上的 SqlWorkflowInstanceStoreBehavior；然而，正如之前推断的那样，我担心这将证明是徒劳的，因为 WorkflowApplication 目前没有记录任何东西（或者甚至试图，据我所知）。

2. ASAppInstanceService 似乎特定于 WindowsServer。如果 ServiceHost（通过 Windows 服务选项）总是要阻止/禁用 WorkflowApplication 进行 SQL 调用，是否可以在 Windows 10 上托管这些（用于开发/预生产） ？

Answer 1

想出了答案：

newWorkflowApplication.Persist();